Shell for inductive high-tension apparatus consisting of annular insulating members



Dec. 8, 1925 1,564,561

H. K. GRUNDIG coNsIsTING oF ELI; FOR INDUCTIVE HIGH TENSION APPARATUS ANNULAR INSULATING MEMBERS Filed July 6.,- 1925 5 Sheets-Sheet 1 Dec. 8, 1925- H. K. GRUNDIG SHELL FOR INDUCTIVE HIGH TENSION APPARATUS CONSISTING OF ANNULAR INSULATING MEMBERS Dec. 8, i925 1,564-561 H. K. GRUNDIG SHELL Fon INDUGTIVE HIGH TENSION APPARATUS ooNsIsTING oF ANNULAR INSULATING MEMBERS Filed July e, 1925 3 shams-sheet s .1,107 @Y1/ll,

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mmc QBNDIG, or DnEsnEN, GERMANY.

1 SHELL ron mnucrIvE HIGH-TENSION APPARATUS consrsrmc or ANNULAI?.`

l INSULATING MEMBERS.

Application' med July 6, 1825. Serial' No. 141 ,85.4.

To'all whomz'tmy concern: Be it known that I, HUGO KARL GRNDIQ a citizen of Germany, residing'at'D'resdem,

in Saxony, Germany, have invented certain 5 new and useful Improvements in Shells for Inductive High-Tension Apparatus Consisting lof .Annular `Insulating Members, of which the following is a specification.

The present invention relates to 1mpro ve ments in shells for inductive high tension apparatusrconsisting of annular insulating may consist of a hollow iron body anchoredmembers placed onl top of each other so asto form a. column. It is already known to construct the shells of inductive high tension apparatus such as transformers and choklng cells, for example, consistmof several 1nduotive member systems of iierent potential step, of an equal number of annular 1nsulatin ybodies 'containing one member system eac in such away as to form a column. According to the 'present invention this type of construction is modified and improved so as to cause the frame-like horizontally arran ed cores' of the member systems to be 'hel successive shell members at their joints. These shell members are vplaced on top of each other and firmly andtightly connected with each other across the joints ln'a manner, which will be described lateron. This arra ement results in the production of an o' -tight and particularly simplestruc ture in so far yas no special supports are 'required Which, with respect to lns'ulation and static ield eect, may possibly need special treatment, while the arrangement of the cores between the shell .members forms a",

'Figs.f143, a', a?, as and a4 denote annular 1ncounter-iniuence in regard t'o, electrodynamic forces. Furthermore, the horizontal position of the cores and' their' arrangement and connection according to the present invention will permit an extremely low type of structure as compared. with the total potential drop.

vThe ty of construction outlined above uses as ell members hollow bodies of insulating material,` which, `in lthe known manner, are provided with a passage for the reception of the connecting piece ofthe core and the inner windin For the purpose of this invention the ho ow bodies consist of.' a wider -upper and a narrower" low'er part, so

that the latter will 't int'the' upper part ofv in position and surrounded by two in the bers' an which conslstof a frame with con- .necting piece, in the jomts between each two 'overlap the cores 2 an nular members" below and whlch 4are ce- Athe vadjacent shell memberl arranged below, vwhile the wider upper parts produce the -wall ofthe column. The top of the column may be formed by -a hollow body having a) passa e 'o'f known shape. The-mode of con- PnTl-:NST OFFICE.

struct1on. disclosed here is distinguished by special vsafety andy protection against shortcircuit, so as to permit a still further reduction of the dimensions of ,the wholeI apparatus.

The lowest member or basek of .the column to the ground. Inside this hollow .bodyAv rests the core of the lowest member system on an annular support, while the outer wall of the hollow body4 ends in a round Fi L 1 is a longitudinal sectlon'; Fig. 2

the subject, of this ine e used as high tension u an eevation; Fig. v3 a cross-section of la high tension' transformen" Figs. 4-7 longitudinal sections of different modifications of the connection between the membersof the column; Fig. 8 a mddification partly in section of a structure shown in Fig. 1; Fig. 9

sectionl of another modlfication of the structure 'shown' in Fig.' 1 Fig. 12 a .partial eleva-A tion 'thereof and Fig. 13 -a cross-section ,thereoifv Referring first to the structure shown in sulatin'g'members'a'nd 2A the cores arranged aces between two superposed memsuccessive members. 'Member a is a plain 1 annular sectioninserted in the outergbase b,

while the'other'm'embers'are rovided with sleeve-like extendmg dprojections 9; which the` edges of .the anmented with the said edges at 10, when in a condition of axial pressure. The 'edge of the base b is also cemented at 12 with the sleeve-like projection of the annular member a. The top annular member c* is of Aa partial elevation thereof; Fig. l0 a horivzontal sectionV thereof Fi -11 a' vertical dome-like shape and carries the bell- '11.' The connecting pieces of the cores are eni veloped by the insulating coil pieces' 5 and support within these coil pieces the second; ariy windings 6, while the coil pieces themse ves' carry the primary windingsv 7. To the upper edges o the annular members,l in a I downward direction, are connected the Faraday cages 8, which consist of two pieces and which serve at the same time for conducting the current 'to the next member.- Thel secondary poles are laterally extended from the last lowest member.. The supply of current to the top primary winding 7 is shown in Fig. 1. The inside of the column is filled with-,oil close t0- the upper edge. Figs." 4-7 show several modications of connection of thel members ofthe column, vand Figs. 6 and 7 indicate sleeve-like projections 9 overlapping the edge of theneighboring member in a manner similar to thatshown in Fig. 1. lIn Figs'. 6 and '7, however, the edges of theneighboring annular members almost meer.,A while the core.; 2 lies between inner flange-like projections 13 of the walls. In Fig. 5 the cere is similarly held, while the s eeve-like projection "has been omitted `and connection 1s estabandthe secondary coil 6 according to Fi lished by a hollow 1metal vring 15 overlapping the joint. A similar hollowl ring 1s shown in Fig.' 4 'too but horizontally divided andv of flange-like shape,so as tok -a- `cilitate4 the disassembling of the, members. A modification in which the annular members are integralwith a passage instead of bein provided with specially inserted coil mem ers 5 fis illustrated by Figs.` 181(). Havinga square basic form each shell member, in the horizontal section of the core, has the structure shownA in Fig. 10, .vi'z, the ,shell member has a pipe-like assa e 14 connecting two opposite walls,t e sai 'passage receivlng the connecting piece of the 4core 2.

and carryingon its outside `the primaryv coil 7 The core lates, however, are in this modification also eld and ressed together between two horizontal re uctions of successive shell mem- -bers. These shell members are connected,

5, by. means of. sleeves which, for electrical reasons, have the form of hollow rings 15 of rounded section and which are'eemented with the two"` successive shell parts. This manner of connection produces the greatest strengthl with respect to short-circuit strains and ermite disassemblingof the shell without' ama ng the porcelain bodies.- The core of the bwest member in thismodification may be carried in an manner desired as, for example, b a

ho low body 16. The to part of the s ell is contracted and covere with acap 11 `to v which are attached the terminals for ri mary connection. The members are ere also connected by divided Faraday cages 8.

,ga e.

l shel low rin Special mention must be made of the form of the center members in so far as they rest on eachother with their wider upper parts, while theirnarrower lower parts en- ,the nearest lower member.

i s. 1v1-13 represent a 'modification whic with respect to the. form of the shell members having a passage, conforms with @the last described' structure, and which,in

regard to he mutual connection of the shell members, -is similar to the structureshown in- Figs. 1-3.

v -What If claim is':-

1. `In .an inductive high tension apparatus,

particularly a high tension transformer,

. consisting of several inductive units of different potential, a column-like shell composed o several superposed annular insulating members and in which the transversely extending `cores of the different units are arranged between the edges of two adjacent members. 2. In an inductive high tension apparatus, particularly a high tension transformer,

consisting of several inductive units of dif- 'ferent potential, a column-like shell composed of several superposed annular nsulating members in w the transversely extending cores are arranged between the edges of two adjacent shell members and ho low rings overlapping the joints of each both said members.A y

3. -In an inductive high tension apparatus, particularly a high tension transformer, consisting of several units 'of diierent potential, a' column-like shell composed of sev- 'eralsuper osed annular insulatmg members between t e vedges of which are arranged transversely the cores of said units, and holoverlappin the joints of adjacent she l members an cemented to the latter, said hollowrings being divided across the joints and formed with ilanges to facilitate the disassemblingloffsaid members.

4. In an inductive igh tension apparatus, particularly a Vhigh tension transformer, consistingof several units of di'erent potential, -a co1umnlike`\ shell composed of several superposed'annular insulating members between the ed es of which are arranged transversely t e cores of said units, said shellv members being formed as hollow bodies, each having a passage for the reception of theconnectingpiece of the. core andinner winding and a wider upper and lower narrgwer part, the narrower lower part being adapte-d to lit in the upper wider part of t e adjacent hollow bod and said wider upper parts `constituting t e wall of the column; i y

5. In an iliductive high tension apparatus, particularly 'a high tension transformer, consisting of several inductive units of different potential, a column-like shell comtwo adjacent shell members and cemented to posed of superposed annular insulating the outer wall of said hollow body terminatmembers between the edges of which are arlng 1D IOllllded @doge OVGIlPPlDg the 10 ranged transversely the cores of said units, lower edge 0f the adlcelt Shell member a hollow iron body constituting the base and Cemnted the'etoof the column and adapted to be anchored In testlmony whereof I affix my Slgltm'eto the ground and to carry the core of the lowermost shell member by means of a ring, HUGO KARL GRUNDIGx 

